Henry Percy Brewster (1816–1884) was a lawyer, stateman, and soldier from Texas. He fought in the Texas War for independance, and as a Colonel in the Confederate Army during the Civil War. He was the Attorney General of Texas from 1847 to 1849.

Henry was born on November 22, 1816 in Laurens County, South Carolina. He read for the law and began his practice there. In 1836, while visiting New Orleans, he volunteered to serve in the nascent Texas Army.

When Brewster arrived in Texas, he was detached from his company to serve as secretary to General Sam Houston. The only action he was in was the Battle of San Jacinto. After that battle he accompanied the wounded Houston to New Orleans. When he returned to Texas later in 1836 he served briefly as the interim Secetary of War for Peresident David G. Burnet.